Re: An unresolved performance problem.

From: Achilleus Mantzios <achill(at)matrix(dot)gatewaynet(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: An unresolved performance problem.
Date: 2003-05-09 18:11:49
Message-ID: Pine.LNX.4.44.0305091611210.7304-100000@matrix.gatewaynet.com
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On Fri, 9 May 2003, Tom Lane wrote:

> Achilleus Mantzios <achill(at)matrix(dot)gatewaynet(dot)com> writes:
> > If so, how can one find the correlation between the ordering
> > of a table and a multicolumn index?
>
> Well, it is surely no better than the correlation of the index's
> first column --- what is that?

it is 1

>
> regards, tom lane
>

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Achilleus Mantzios
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email: achill(at)matrix(dot)gatewaynet(dot)com
mantzios(at)softlab(dot)ece(dot)ntua(dot)gr

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